Removed XVFB from Travis build now that tests are headlesss
Removed XVFB from Travis build now that tests are headlesss

VocabHunter/VocabHunter,AdamCarroll/vh-sandbox,AdamCarroll/VocabHunter,AdamCarroll/vh-sandbox,AdamCarroll/VocabHunter,VocabHunter/VocabHunter